16

C    -2.27611   -0.96963   -0.13287
C    -1.69708    0.13552    0.28720
C    -0.65961    0.91633   -0.48214
C     0.70276    0.95807    0.26257
C     1.35258   -0.40218    0.31706
C     2.53798   -0.68341   -0.18133
H    -3.00789   -1.48584    0.45901
H    -1.95555    0.53958    1.25178
H    -0.51526    0.48251   -1.46460
H     1.36259    1.65955   -0.23580
H     0.77285   -1.17430    0.78985
H     2.95490   -1.67104   -0.12541
H     3.14309    0.06156   -0.66513
H     0.53597    1.32581    1.27198
H    -1.01008    1.93622   -0.61608
H    -2.04370   -1.40225   -1.08854
